As the title states, looking at controlling the cooling fans and circulation pump in a certain manor. Now this may be long winded for something simply simple, but more info the better?
ECU outputs are for Radiator Fan 1 and 2, Both Negative switched, At the front of the car there are four relays with their terminal 86 going to ignition power, And terminal 85 heading back to the ECU (Rear engine, Front Radiator)
Three relays control the cooling fans in a Series / Parallel arrangement, The last relay controls the Circulation pump.
Now onto what I would like to see happen, the cooling fans staying in the Series / Parallel arrangement, but i would like to see the Coolant pump turn on with the low speed (series) fan trigger, But like to see it shutting off @10-20 seconds or so after the Low Speed trigger is shut off. Most simple circuits i see usually used a positive trigger, but since I'm dealing with a Negative trigger what is evolved in getting this to workout for me?
Now in my dream world, I would have it so that the Cooling fans will run on low (series) and the Coolant pump still on for awhile when the car is shut off only if the high speed fan was triggered when the car was shut off for another 10-20 seconds.
Thank you
ECU outputs are for Radiator Fan 1 and 2, Both Negative switched, At the front of the car there are four relays with their terminal 86 going to ignition power, And terminal 85 heading back to the ECU (Rear engine, Front Radiator)
Three relays control the cooling fans in a Series / Parallel arrangement, The last relay controls the Circulation pump.
Now onto what I would like to see happen, the cooling fans staying in the Series / Parallel arrangement, but i would like to see the Coolant pump turn on with the low speed (series) fan trigger, But like to see it shutting off @10-20 seconds or so after the Low Speed trigger is shut off. Most simple circuits i see usually used a positive trigger, but since I'm dealing with a Negative trigger what is evolved in getting this to workout for me?
Now in my dream world, I would have it so that the Cooling fans will run on low (series) and the Coolant pump still on for awhile when the car is shut off only if the high speed fan was triggered when the car was shut off for another 10-20 seconds.
Thank you